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Epson STYLUS 4001968 manual

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Table of contents for the manual

  • Page 1

    “) EPSON TERM NAL PRINTER Myk. 800 SERVICE MANUAL EPSON ) 4001968 Rev. A[...]

  • Page 2

    NOTICE Al l right s reserved . Reprodu c tio n o f an y par t o f thi s manua l i n an y for m whatsoev e r witho u t SEIKO EPSON’ s expr e s s writte n permission i s forbidden. The content s of this manua l are subject s to cha n ge without notice. Al l effort s hav e be e n mad e t o ensur e th e accurac y o f th e content s o f thi s manual .[...]

  • Page 3

    PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment. DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings. WARN/NG Signals a precaution which[...]

  • Page 4

    PREFACE This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of stylus 800. The instructions and procedures included herein are intended for the experience repair technician, and attention should be given to the precautions on the preceding page. The chapters are organized as follows: CHAPTER 1. G[...]

  • Page 5

    Revision Issue Date Revision Page Rev. A December 18, 1992 First issue Added information: Rev. B May 7, 1993 Chapter 2 (Page 2-23) Chapter 3 (Page 3-5/6) Chapter 6 (Page 6-1/2) Rev. C June 11, 1993 Corrected the figure: Chapter 2 (Page 2-8) Added information: Rev. D March 10, 1994 Appendix (Page A-i, A-5’, A-7’, A-8’, A-9’, A-1 O’) -v-[...]

  • Page 6

    TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATING PRINCIPLES CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENTS CHAPTER 5. TROUBLESHOOTING CHAPTER 6. MAINTENANCE APPENDIX - vi -[...]

  • Page 7

    Chapter 1 General Description Table of Contents 1.1 FEATURES 1-1 1.2 SPECIFICATIONS 1-2 1.2.1 1.2.2 1.2.3 1.2.4 1.2.5 1.2.6 1.2.7 1.2.8 1.2.9 Printing Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 Paper Handling Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ...1-4 P[...]

  • Page 8

    List of Tables Table 1-1. Print Speed and Printable Columns . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Table 1-2. Character Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table l-3. Adjust Lever Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......1-6 Table l-4. Enviro[...]

  • Page 9

    STYLUS 800 Service Manual General Description 1.1 FEATURES The Stylus 800 is a serial inkjet printer that uses a newly developed inkjet technology to accomplish a superb quality output with high-speed printing. The major features of this printer are: Ll High print quality from a new inkjet technology. Cl Fast printing of LQcharacters at 150 cps. Cl[...]

  • Page 10

    General Description STYLUS 800 Service Manual 1.2 SPECIFICATIONS This section provides detailed statistics for this printer. 1.2.1 Printing Specification Print system: On-demand ink jet system Nozzle configuration: 48 nozzles (12 nozzles x 4 staggered columns) I I . . I I i i I I i i II I I ,, I I Qi i #4 5 . Figure 1-2. Nozzle Configuration 0 Pape[...]

  • Page 11

    STYLUS 800 Service Manual Geneml Descri@ion Character sets: Legal and 14 international character sets. Character tables: See Table 1-2. Table 1-2. Character Tables Character Table US Version European Version Pacific Version ITALIC o 0 0 PC437 (U.S./Standard Europe) o 0 0 PC850 (Multilingual) o 0 0 PC860 (Portuguese) o 0 0 PC863 (Canadian-French) o [...]

  • Page 12

    General Description STYLUS 800 Sewice Manual 1.2.2 Paper Handling Specification Feeding system: Friction feed from built-in sheet feeder or manual insertion slot. Notes: The following operation are not al/owed. 1. Reverse feeding within 3 mm (O. 12 inches) from the top edge of the paper or 16 mm (0.63 inches) from the bottom edge of the paper. 2. R[...]

  • Page 13

    STYLUS 800 Service Manual Geneml Description Printable area: Cut Sheet (with built-in sheet feeder) B (Left marain)> — r c 4 (Right marain]~ Printable area . r ! A (Top margin) ID I (Bottom margin) 1 Figure 1-3. Printable Area - Cut S~eet (Built-in Sheet Feeder) Cut Sheet / Envelope (with the manual insertion slot) B c (Left marain) ~. * A Pri[...]

  • Page 14

    General Description SNLUS 800 Service Manual Adjust lever settings: The adjust lever, attached to the carnage unit, must be set to proper position for the paper thickness, as shown in Table 1-3. Table 1-3. Adjust Lever Settings Lever Position Paper Type Paper Thickness LEFT Cut Sheets ~;%26--00~iO!$ RIGHT Envelopes 0.16 - 0.52 mm (0.0063- 0.020”)[...]

  • Page 15

    STYLUS 800 Service Manual Genera/ Descriptim 1.2.5 Environmental Conditions Table 1-4. Environmental Conditions Description Operating Storage Temperature 10-35 ‘c (50 - 95 ‘I=)(*1) -20- 60 “C (-4 - 140 ‘F) (*2) Humidity 20- 80% RH (*1,*3) 5- 85~0 RH (*2,*3) Resistance to shock 1 G, within 1 msec. 2 G, within 2 msec. (*2) Resistance to vibra[...]

  • Page 16

    General Description STYLUS 800 Service Manual 1.2.7 Reliability MTBF: 4000 power on hours (POH) at a duty cycle of 10% MCBF: 3 million lines (excluding the printhead) Printhead life: 1 billion dots per nozzle Total print volume: 75000 pages (with A4 or Letter size paper) 1.2.8 Safety Approval Safety standards: US version: UL1950 with D3 CSA22.2 %22[...]

  • Page 17

    SNLUS 800 Service Manual GenemlDescription 1.3 INTERFACE SPECIFICATION The Stylus 800 is equipped with an 8 bit parallel interface, standard. Data format: 8 bit parallel Synchronization: STROBE pulse swchronization Handshaking: By BUSY and ACKNLG signals Signal level: TTL-compatible level Adaptable connector: 36-pin 57-30360 (Amphenol) or equivalen[...]

  • Page 18

    General Description SNLUS 800 Service Manual Table 1-6. Signal and Connector Pin Assignments (Continued) Pin No. Signal Name I/o Description 16 GND Signal ground. 17 CHASSIS-GND - Chassis ground. (Both chassis ground and signal ground are connected in the ptinter.) 18 NC Not USed. 19-30 GND Twisted-pair return signal ground. 31 INIT I If this signa[...]

  • Page 19

    STYLUS 800 Service Manual General DescriWion 1.4 PRINTER OPERATIONS This section describes the basic operations of the printer. 1.4.1 Control Panel The control panel of this printer contains five non-lock type push buttons and nine LED indicators for easy operation of the various printer functions. r O PAPER OUT 5 [ jALT O INK OUT I I II o ECONOM[...]

  • Page 20

    General Description STYLUS 800 Service Manual 1.4.2 Panel Operation at Power On The following functions can be activated at power on by holding down the specified button on the control panel. Self-test mode: Start the self-test printing mode by turning the printer on while holding down the FONT button. Hex dump mode: Start the built-in hexadecimal [...]

  • Page 21

    SWLUS 800 Service Manual General Description 1.4.4 Initial ink Charge When the printer is to be set up for primary use, whole ink supply path of the printer must be filled with a new ink, by performing the initial ink charge operation. [Step 1] [Step 2] [Step 3] [Step 4] Turn the printer on and press the PAUSE button to pause the printer. Open the [...]

  • Page 22

    General Description STYLUS 800 Service Manual 1.5 MAIN COMPONENTS The main components of this printer are: O Printer mechanism (M-481O) Q Main control board (C106 MAIN BOARD) ~ Power supply unit (C106PSB/PSEBOARD) Cl Control panel Cl Housing 1.5.1 Main Control Board (C106 MAIN BOARD) The C106 MAIN BOARD is the main conboller of the Stylus 800. It t[...]

  • Page 23

    STYLUS 800 Service Manual General Description 1.5.2 Power Supply Unit (C106 PSBIPSE BOARD) The power supply unit converts input AC voltage and generates different DC voltages required by the printer mechanism and other electrical circuities. The C106 PSB BOARD is for 120VAC input, and the C106 PSE BOARD is for 220 to 240VAC input. /- — o Figure 1[...]

  • Page 24

    ,. . . . . f.:,’ .[...]

  • Page 25

    Chapter 2 Operating Principles Table of Contents 2.1 OVERVIEW 2-1 2.2 OPERATING PRINCIPLES OF THE PRINTER MECHANISM 2-1 2.2.1 Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-2 2.2.2 Carriage Drive Mechanism . . . . . . . . . . . . . . . . . . . . . . ...............2-4 2.2.2.1 Platen Gap Adjust [...]

  • Page 26

    List of Figures Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. Figure 2-10 Figure 2-11 ~D•Œ Figure 2-12 Figure 2-13 Figure 2-14 Figure 2-15 Figure 2-16. Figure 2-17. Figure 2-18. Figure 2-19. Figure 2-20. ~...,, Functional Block Diagram of the Printer Mechanism . ...........2-1 ~: Stru[...]

  • Page 27

    STYLUS 800 Service Manual Operating Principles 2.1 OVERVIEW This section describes the operating principles of the printer mechanism and the electrical circuits of the Stylus 800. 2.2 OPERATING PRINCIPLES OF THE PRINTER MECHANISM The Stylus 800 printer mechanism is composed of the printhead unit, paper feed mechanism, carriage drive mechanism, pump[...]

  • Page 28

    Operating Principles STYLUS 800 Service Manual 2.2.1 Printer Mechanism The printer mechanism of this printer uses a drop-on-demand ink jet system similar to the system used on all other Epson ink jet printers. However, the printhead in this system is completely redesigned to make it compact and highly reliable. The figure below shows the structure [...]

  • Page 29

    STYLUS 800 Service Manual Operating Principles Principles of the Printing Operation The operation of the printhead to inject ink from each nozzle is: (1) Normal state No electrical charge is applied to the MLP (Multi-Layer Piezoelectric) element attached to the back of the cavity, and pressure inside the cavity is kept at constant level. Nozzl (2) [...]

  • Page 30

    Operating Principles STYLUS 800 Service Manual 2.2.2 Carriage Drive Mechanism The timing belt attached to the base of the carriage unit is driven by the carriage motor, causing the carriage unit to move along the carriage guide shaft left to right, or vice versa. The carriage drive motor on this printer is a 4-phase, 200-pole, hybrid-type stepping [...]

  • Page 31

    ) STYLUS 800 Service Manual Operating Principles 2.2.3 Paper Feed Mechanism This printer’s paper feed mechanism can feed paper either from the built-in ASF (auto sheet feeder) or the manual feed slot. The paper feed drive motor is a 4-phase, 4t3-pole, PM-type stepping motor that directly drives the paper feed mechanism (paper advancing operation,[...]

  • Page 32

    Operating Principles STYLUS 800 Sewice Manua) 2.2.4 Ink System This printer’s ink system is composed of the following mechanisms: ■ Ink cartridge ■ Pump mechanism E Cap mechanism H Printhead cleaning mechanism ■ Waste ink drain tank The figure below shows a diagram of the ink system. Ink Cartridge Head Driver Boar Filter ! Figure 2-7. Diagr[...]

  • Page 33

    STYLUS 800 Service Manual Operating Principles 2.2.5 Pump Mechanism The paper feed motor drives the pump mechanism when the transmission gear is moved to the position where the paper feed motor engages the pump mechanism gear trains, when the carriage unit is at the ink system home position. The figure below shows a block of the pump mechanism. Pum[...]

  • Page 34

    Operating Principles STYLUS 800 Service Manual Table 2-4. Pump Mechanism Operation PF Motor Rotational Direction Operation 1 Pumping CW (forward rotation) Pseudo-pumping (False absorbing) Gear backrush com~ensation CCW (backward rotation) Pump pulley reset Gear backrush compensation The pump draws ink from the printhead nozzles and drains it into t[...]

  • Page 35

    STYLUS 800 Service Manual Operating Principles 2.2.6 Cap Mechanism The cap mechanism prevents the printhead nozzles from drying or bubbles from forming inside the nozzle while the printer is not in use. The printhead capping operation is performed automatically so that a cap closely contacts the printhead surface when the carriage unit is moved to [...]

  • Page 36

    Operating Principles STYLUS 800 Service Manual 2.3 OPERATING PRINCIPLES OF THE ELECTRICAL CIRCUITRIES The Stylus 800 contains the following circuit board units: ■ C106 MAIN BOARD (Main control circuit board) ■ C106 PSB/PSE BOARD (Power supply circuit board) In addition to the circuit boards above, part of the printhead drive circuit is built on[...]

  • Page 37

    STYLUS 800 Service Manual Operating Principles The figure below shows a block diagram of the power supply circuit (C106 PSB/PSE). This power supply circuit employs the RCC (ringing choke converter) switching control system. The input AC voltage supplied from the external AC source is first input to the filter circuit for higher harmonics absorption[...]

  • Page 38

    Operating Principles STYLUS 800 Service Manual 2.3.2 Operating Principles of the Main Control Circuit The main control circuit of this printer is the C106 MAIN BOARD. This circuit is controlled by the 8-bit CPU TMP96C141F (ICI), running at 19.6608 MHz. This CPU has a unique architecture capable of handling data on the data bus at either an 8-bit bu[...]

  • Page 39

    STYLUS 800 Service Manual Operating Principles 2.3.2.1 Reset Circuits The C106 MAIN BOARD contains two reset circuits: the +5 V monitor reset circuit and the +35 V monitor reset circuit. The +5 V monitor reset circuit monitors the voltage level of the +5 V line, using reset IC PST592 (IC12), and outputs a reset signal to both the CPU (ICI, TMP96C14[...]

  • Page 40

    Operating Principles STYLUS 800 Service Manual 2.3.2.3 Ink End Detection The IE (Ink End) sensor attached to the carriage detects, not only the ink end, but also when ink is low and whether an ink cartridge is installed. The detected status is classified to five modes according to the output voltage level of the IE sensor. ❑ Mode A: No I/C (Abnor[...]

  • Page 41

    STYLUS 800 Service Manual Operating Principles 2.3.2.4 Carriage Motor Drive Circuit Carriage motor drive IC SLA7024 (IC13) drives the carriage motor for the printer mechanism by a I constant current, unipolar drive system. Gate array E05A85EB (IC3) selects the motor phase drive current level using the output signals from ports CRO to CR3 (pins 75 t[...]

  • Page 42

    Operating Principles STYLUS 800 Service Manual 2.3.2.5 Paper Feed Motor Drive Circuit The paper feed motor for this printer drives the following mechanisms: c ~.,, ; ‘ 9 Paper feed mechanism . . ■ Paper pickup mechanism ■ Pump mechanism Driver IC SMA6501 (QM1) drives the paper feed motor by a constant voltage, unipolar drive system. The CPU o[...]

  • Page 43

    STYLUS 800 Service Manual Operating Principles 2.3.2.6 Printhead Drive Circuit The printhead drive circuit for this printer is composed of the following two parts: ❑ Common drive circuit (trapezoidal drive pulse generation) ■ Head drive circuit (nozzle control built on the printhead) The 64-bit thermal head driver SED5620D in the head drive cir[...]

  • Page 44

    Operating Principles SNLUS 800 Service Manual 2.4 INK SYSTEM MANAGEMENT This section explains how the ink system is controlled to protect the printhead and the ink supply system and to ensure highquality output. The ink system control is composed of the following operations: ■ Power on ■ Cleaning ■ Standby ■ Refresh ■ False absorbing ■ [...]

  • Page 45

    STYLUS 800 Service Manual Opmeting Principles 2.4.1 Ink Operations There are various ink operations that can be performed selectively by the printer. 2.4.1.1 Power on Operation Power on consists of the following operations, and only one of these operations is performed, depending on the position of the carnage when the printer is turned on. ■ At [...]

  • Page 46

    Operating Principles STYLUS 800 Service Manual 2.4.1.3 Standby Operation The standby operation prevents an increase in the viscosity of the ink held inside the printhead nozzles. This operation is performed automatically if no data is received for more than three seconds from the last print data. 1) Counts the number of flushing operations from the[...]

  • Page 47

    STYLUS 800 Service Manual Operating Principles 2.4.1.6 Cleaner Blade Operation The cleaner blade operation eliminates any dust or ink attached to the nozzle plate surface. This operation consists of the following separate operational modes. ■ Cleaner blade - I ■ Cleaner blade -II ■ Cleaner blade - III ■ Rubbing This operation eliminates any[...]

  • Page 48

    Operating Principles STYLUS 800 Service Manual 2.4.1.8 Disengage ON Operation This operation sets the switch lever to the position where it transmits the PF motor drive to the pump mechanism. 1) Moves the carriage to the position D where the lever is set to the specified position. 2) Moves the carriage to the position B. 3) Release a mechanical pre[...]

  • Page 49

    STYLUS 800 Semice Manual Operating Principles 2.4.2.4 Protect Counter There are four protect counters to manage the amount of ink draining to the waste ink drain tank. The value of these counters is stored in EEPROM on the main board upon power off. t ■ Prot@ counter A This counter is used to manage the total amount of drained ink. If the I count[...]

  • Page 50

    Chapter 3 Disassembly and Assembly Table of Contents 3.1 OVERVIEW 3-1 3.1.1 Precautions for Disassembling the Printer . . . . . . . . . . . . . . . . . . . . .. ...3-1 3.2 DISASSEMBLY AND ASSEMBLY 3-2 3.2.1 CASE, UPPER Removal . . . . . . . . . . . . . . . . . . . . . .................3-3 3.2.2 Power Supply Unit (C106 PSB/PSE BOARD) Removal . .....[...]

  • Page 51

    STYLUS 800 Service Manual Disassembly and Assembly 3.1 OVERVIEW This section describes procedures for disassembling the main components of this printer. Unless otherwise specified, the disassembled unit or components can be reassembled simply by reversing the disassembly procedure. The assembly procedure is, therefore, omitted. Precautions for any [...]

  • Page 52

    Disassembly and Assembly STYLUS 800 Service Manual 3.2 DISASSEMBLY AND ASSEMBLY Follow the instruction in Section 3.1.1 to disassemble the prt”nter. I This section consists of the subheads shown in the diagram below. Refer to the exploded view of the printer in the Appendix, if necessary. F1 START CASE, UPPER Removal & 3.2.1 Page 3-3 Power Su[...]

  • Page 53

    STYLUS 800 Service Manual Disassembly and Assembfy 3.2.1 CASE, UPPER Removal [Step 1] [Step 2] [Step 3] [Step 4] [Step 5] [Step 6] Remove the COVER, PRINTER by releasing the tabs holding it to the CASE, UPPER. Remove the SUPPORT, PAPER by releasing the tabs holding it to the CASE, LOWER. Remove the GUIDE, PAPER, REAR. Remove the CONTROL PANEL. (Rel[...]

  • Page 54

    Disassembly and Assembly STYLUS 800 Service Manual 3.2.2 Power Supply Unit (C106 PSB/PSE BOARD) Removal [Step 1] [Step 2] [Step 3] [Step 4] Remove the CASE, UPPER. (Refer to Section 3.2.1.) .( ,:,, Disconnect the cables from comectors CN1 and CN2 of the C106 PSB/PSE BOARD. Remove 4 screws (CBB screw (M3 x 6) x 2, CBS screw (M3 x 6), CB(0) screw (M4[...]

  • Page 55

    I I STYLUS 800 Service Manual Disassembly and Assembly 3.2.3 Main Controller (CI06 MAIN BOARD) Removal [Step 1] Remove the CASE, UPPER. (Refer to Section 3.2.1.) [Step 2] Disconnect the cables from the connectors CN2/CN3/CN4/CN5 /CN6/CN7 of the C106 MAIN BOARD. [Step 3]. Remove 4 screws (CBB screw (M3x1O)X2,CBS screw (M3x6)x2) and take out the main[...]

  • Page 56

    Disassembly and Assembly STYLUS 800 Service Manual 3.2.4 PRINTER MECHANISM (M-481O) Removal [Step 1] Remove the CASE, UPPER. (Refer to Section 3.2.1.) [Step 2] Remove the power supply unit. (Refer to Section 3.2.2.) [Step 3] Remove the main controller. (Refer to Section 3.23.) [Step 4] . Move the carriage to the center of the ptiner. [Step 5] Remov[...]

  • Page 57

    SNLUS 800 Servke Manual Disassembly and Assembly 3.2.5 PRINTER MECHANISM Disassembly The procedures described in this section explain removal of components within the printer mechanism. 3.2.5.1 PRINTHEAD UNIT Removal [Step 1] Remove the printer mechanism. (Refer to section 3.2.4.) [Step 2] Move the carriage to the middle of the printer. The carriag[...]

  • Page 58

    Disassembly and Assembly STYLUS 800 Service Manual Ink Cartridge @ o 0“ I Q / Printhead Unit a -. =’5” ~ 22% %.. Figure 3-7. PRINTHEAD UNIT Removal (Continued) ..:-. f ,. 3-8 Rev. A[...]

  • Page 59

    SNLUS 800 Sewice Manual Disassembly and Assembly 3.2.5.2 PUMP UNIT Removal [Step 1] [Step 2] [Step 3] [Step 4] [Step 5] [Step 6] Remove the PRINTER MECHANISM. (Refer to section 3.2.4.) Move the carriage to the middle of the printer. The carriage is located between first and second paper guide roller, as illustrated in figure below. Remove 2 screws [...]

  • Page 60

    Disassembly and Assembly STYLUS 800 Sewice Manual Pump Unit f ,*- 4 . Figure 3-9. PUMP Unit Removal (Continued) 3-1o Rev. A[...]

  • Page 61

    STYLUS 800 Service Manual Disassembly and Assemb/y 3.2.5.3 CLEANER, HEAD Replacement [Step 1] Remove the PUMP UNIT. (Refer tosection3.2.5.2.) [Step 2] Remove the CLEANER, HEAD from the pump unit. Keeping the CLEANE& HEAD clean is extremely important to keep the ink injection system working properly in the printhead, and it directly afiects prin[...]

  • Page 62

    Dkassembly and Assembly STYLUS 800 Servke Manual 3.2.5.4 CARRIAGE UNIT Removal [Step 1] [Step 2] [Step 3] [Step 4] [Step 5] [Step 6] Remove the printer mechanism. (Refer to section 3.2.4.) @ Remove the tension spring that holds the CR motor in place. Then, take the timing belt out of the CR motor drive pulley and the driven pulley. Remove the groun[...]

  • Page 63

    STYLUS 800 Sewice Manual Disassembly and Assembiy 3.2.5.5 CR MOTOR Removal [Step 1] Remove the printer mechanism. (Refer to section 3.2.4.) [Step 2] Remove the tension spring and take thetimingbeltout of the CRmotordrive pulley. [Step3] Remove 3 screws (CP(P2) screw (M3 x 10) x 3) that fixing the CR motor to the CR motor holder plate, and remove th[...]

  • Page 64

    Disassembly and Assembly STYLUS 800 Service Manual 3.2.5.6 PF MOTOR Removal [Step 1] Remove theprinter mechanism. (Refer tosection3.2.4.) [Step 2] Remove3 screws (CBB screw (M3x 10) x3), and remove theholdingplate. Since the holding plate retains the pressure springs under it, be sure not to loose them when removing the holding plate. [Step3] Remov[...]

  • Page 65

    STYLUS 800 Service Manual Disassembly and Assembly 3.2.5.7 [Step 1] [Step 2] [Step 3] [Step 4] PAPER FEED ROLLER ASSEMBLY Removal Remove the printer mechanism. (Refer to section 3.2.4.) Remove the carriage unit. (Refer to section 3.2.5.4.) Remove 2 screws (CBB screw (M3 x 10) x 2), and remove the frame assembly. Remove the PAPER FEED ROLLER ASSEMBL[...]

  • Page 66

    Chapter 4 Adjustments Table of Contents 4.1 OVERVIEW 4-1 4.1.1 Precautions for Adjustment . . . . . . . . . . . . . . . . . . . . . . . 4.2 BI-DIRECTIONAL PRINTING ALIGNMENT ADJUSTMENT . . . . . . . . . . . . . 4-1 4-1 4.3 DEFAULT SEITING PARAMETER REGISTRATION 4-2 4.4 PAPER GAP ADJUSTMENT 4-2 Figure 4-1. PG Adjustment . . List of . . . . . . . Fig[...]

  • Page 67

    STYLUS 800 Service Manual Adjustment 4.1 OVERVIEW This section describes procedures of the adjustment required when the printer is disassembled and assembled after repair. 4.1.1 Precautions for Adjustment You should refer to the precautions below when adjusting the printer. Disconnect the power cable before when you attempt the adjustment. (Unless [...]

  • Page 68

    Adjustment STYLUS 800 Sewice Manual 4.3 DEFAULT SETTING PARAMETER REGISTRATION The set up value that specifies the destination of the product distribution, is stored in the EEPROM on the main board (C106 MAIN). Therefore, this set up value must be written in EEPROM when the main board or the EEPROM chip is replaced. [Step 1] [Step 2] [Step 3] [Step[...]

  • Page 69

    STYLUS 800 Service Manual Adjustment Shaft holder Carriage guide shaft T I Ii I . . . . . . . . ~ 6’ ““-7L I Ii :: 1: .. ;....: I A 4 LEH PG Gauge RIGHT Adjust position Adjust position Shaft holder 7 arriaga . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . / PG Gauge Cut s[...]

  • Page 70

    Chapter 5 Troubleshooting 1 Table of Contents 5.1 OVERVIEW 5-1 5.2 UNIT LEVEL TROUBLESHOOTING 5-3 5.2.1 Printer does not operate at power on . . . . . . . . . . . . . . . . . . . . . . .......5-4 5.2.2 Error is detected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .5-5 5.2.3 Failure occurs during printing .[...]

  • Page 71

    STYLUS 800 Service Manual Troubleshooting 5.1 OVERVIEW The printer may exhibit different symptoms for the same problem, which makes troubleshooting more difficult. This section, however, provides simple and effective ways to facilitate troubleshooting. The following flowchart illustrates the main steps of the troubleshooting process. I J ASSEMBLY A[...]

  • Page 72

    Troubleshooting STYLUS 800 Service Manual Table 5-3. Error Codes Error PAPER INK END PAUSE LED LED LED Buzzer Recovery Load the paper and press the Paper out ON OFF OFF V* ~ ~ tim~ buttons as follows: 1. PAUSE 2. LOAD/EJECT Paper jam BLINKS OFF OFF V* x 3 times Same as above. Press PAUSE button and replace the ink cartridge with Ink low *1 OFF BLIN[...]

  • Page 73

    STYLUS 800 Service Manual Troubleshooting 5.2 UNIT LEVEL TROUBLESHOOTING When a problem occurs, you can distinguish the defective unit by referring the symptoms of the defect. The table below lists the svrrmtom of certain defects, and you can easily identify what the problem. Once the problem is identif&i, refer to the flowchart corresponding t[...]

  • Page 74

    Troubleshooting STYLUS 800 Service Manual 5.2.1 Printer does not operate at power on F Use the comxt YES Replace the fuse and discmwt cN70n the C106 MAIN board.. NO NO Check the output voltage of Ihe C1C6 YES PWPSEal CN2. w Replace the YES printer mechanism. 4 d“’ y . . . . I Replaca the CIOS PSSJPSE board. I t. ... , * END 1 , . . 5-4 Rev. A[...]

  • Page 75

    STYLUS 800 Sewke Manual TmuMeshootjng 5.2.2 Error is detected z START Identify the type of enor indicated. (SaeTable 5-3.) Turn the printer NO NO NO Waste ink drain tank over-fbw r Replace the waste ink absorbing material, and raset the protect counter. (S88 Chapter 6.) NO 4 YES NO +- Replamthe printer mechanism. * ND * END Rev. A 5-5[...]

  • Page 76

    Troubleshooting STYLUS 800 Service Manual 5.2.3 Failure occurs during printing F NO NO YEs J NO ES Adjust the Bkdirectionel NO Reptecethe printer mechanism. ES Es NO I R@cetheC106 MAIN bcaNI. I NO F Es #-: ““f “ . . {,:.;’” * END + END . 5-s Rev. A[...]

  • Page 77

    STYLUS 800 Service Manual Troubleshooting 5.2.4 Printer does not feed the paper correctly NO Set the paper YES Ccmcfly. I NO G Replace the C1G6 MAIN board. Verify that nothing abnormal within the paper path. Also confirm that there is nci any foreign objects that may interfare the paper movement, Replace the YES printer mechanism. * END * END Rev. [...]

  • Page 78

    Troubleshooting STYLUS 800 Servjce Manual 5.2.5 Control panel operation is abnormal m YES & Is the prcblem YES corrected ? NO d Replace the ccntrol panel. NO Replacatha C106 YES MAIN board. c , * END . . . . . . . f ,. . 5-s Rev. A[...]

  • Page 79

    STYLUS 800 Sewice Manual Troubleshooting 5.3 UNIT REPAIR - CI06 PSB/PSE BOARD This section describes the problems related to the power supply board (C106 PSB/PSE). The table below provides various symptoms, likely causes, and checkpoints. The checkpoints refer to waveforms, resistance, and other values to be checked to evaluate the operation of eac[...]

  • Page 80

    Troubleshooting STYLUS 800 Service Manual 5.4 UNIT REPAIR - CI06 MAIN BOARD This section describes the problems related to the main controller board (C106 MAIN). The table below provides various symptoms, likely causes, and checkpoints. The checkpoints refer to waveforms, resistance, and other values to be checked to evaluate the operation of each [...]

  • Page 81

    STYLUS 800 Service Manual Troubleshooting Table 5-6. Repair of the C106 MAIN (Continued) Rev. A 5-11[...]

  • Page 82

    Troubleshooting SNLUS 800 Service Manual 5.5 UNIT REPAIR - PRINTER MECHANISM (M-4810) Troubles related to the printer mechanism should be repaired according to the troubleshooting procedures in Table 5-7. Table 5-7. Repair of Printer Mechanism Symptom Condition Cause Checkpoint Solution Foreign Manually drive the gear substances are Remove any The [...]

  • Page 83

    SNLUS 800 Service Manual Troubleshooting Table 5-7. Repair of Printer Mechanism (Continued) Symptom Condition Cause Checkpoint Solution The head cable is Check the head cable for Replace the disconnected. disconnection. cable., The carriage Printing is not moves, but no The printhead is Replace the printhead to Replace the performed. printing is de[...]

  • Page 84

    Chapter 6 Maintenance Table of Contents 6.1 PREVENTIVE MAINTENANCE 6-1 6.2 SERVICE MAINTENANCE 6-1 6.2.1 Printhead Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .6-1 6.2.2 Waste Ink Drain Tank Replacement. . . . . . . . . . . . . . . . . . . . . . ........6-1 6.3 LUBRICATION 6-2 List of Figures Figure 6[...]

  • Page 85

    SNLUS 800 Service Manual Maintenance 6.1 PREVENTIVE MAINTENANCE Altough this printer is designed that no specific maintenance is required in regular basis, it is good idea to clean the printer throughly whenever you get a chance to do so. You can clean : a Outer case If it is dirty, clean it with a soft, clean cloth, dampened with mild detergent if[...]

  • Page 86

    Maintenance STYLUS 800 Service Manual 6.3 LUBRICATION The printer must be lubricated properly when the printer is disassembled for component replacement, or if the mechanical noise exceeds a certain level. EPSON only recommends the lubricants listed in table below for this printer, both of which have been tested extensively and found to comply with[...]

  • Page 87

    SNLUS 800 Service Manual Maintenance Figure 6-1. Lubrication Points Rev. A 6-3 I[...]

  • Page 88

    Appendix Table of Contents A.1 CONNECTOR SUMMARY A-1 A.2 CIRCUIT DIAGRAMS A-5 A.3 CIRCUIT BOARD COMPONENT LAYOUT A-9 A.4 EXPLODED DIAGRAM A-12 List of Figures Figure A-1. Interconnection of Major Components . . . . . . . . . . . . . . . . . . . . . . A-1 Figure A-2. CI06 MAIN Control Board Component Layout . . . . . . . . . . . . . . . . A-9 Figure[...]

  • Page 89

    SNLUS 800 Sewice Manual Appendix A.1 CONNECTOR SUMMARY Figure below shows the intercomection between the major components of the Stylus 800. +11 c-) AC Input _ z CI06 PSB/PSE Parallel IIF ICN2 I Iw-1 OJ z I I CN8 ] I CN6 ] ICN5 ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printhead Unit[...]

  • Page 90

    Appendix SNLUS 800 Service Manual Table A-1. Connector Summary Board Location Pin Description Cl 06 MAIN CN1 36 pins Centronics parallel l/F CN2 12 HEAD-1 (to printhead unit) CN3 12 HEAD-2 (to printhead unit) CN4 2 PE sensor CN5 6 PF motor CN6 5 CR motor CN7 4 PS line (to C106 PSB/PSE) CN8 18 Panel control (to Cl 06 PNL) Cl 06 PSB/PSE CN1 2 AC Inpu[...]

  • Page 91

    STYLUS 800 Service Manual Amandix Pin 1 2 3 4 5 6 7 8 9 10 11 12 Table A-4. Connector Pin Assignment - CN3 1/0 o 0 0 0 0 I I Name GND HCLK GND LAT GND SI GND VE HPV HP +5V TH Description Ground Synchronizing clock signal (to S1) Ground Latch signal (to S1) Ground Head serial data signal Ground Ink-end (IE) signal Power supply to the photodiode of H[...]

  • Page 92

    Appendix STYLUS 800 Service Manual Table A-9. Connector Pin Assignment - CN8 Pin 1/0 Name Description 1 +!FN +5V DC 2 0 LEDO LEDO driie signal (“L”=LED on) 3 I Swl SW1 input signal (“L”=Button pressed) 4 1 SW2 SW2 input signal 5 I SW3 SW3 input signal 6 I M SW4 input signal 7 I PAUSE PAUSE input signal 8 0 LED1 LED1 driie signal 9 0 LED2 LE[...]

  • Page 93

    (’;’:, . . (J . STYLUS 81M Service Manual Append& : ‘ + Y o .x c .- m In z : Rev.D A-7’ I[...]

  • Page 94

    Appendix STYLUS 800 Service Manual m -J =~ . I I I u + w . z 0 r ‘al 0 II-l I t I I * h & w .s N 0 3 m A-a’ Rev.D[...]

  • Page 95

    STYLUS S00 Sarvice Manual Appandix o s----l r-l n - ‘ 77 t . . ● “+3 ● ll I . [ u -J , - j~s L w BJ?lu-q- ● %7(EM U 2010435 0! Al ‘-’k-’, 73 —-” 8 Id Orl u ‘IC10 a ~wF & L I ‘Y ) 0 0 0 0 Ki!!l ID D m m m o 0 0 HI C. <. ,.-,,>J . ; ,, ml ’ 00 Ml 0000 0 Component Layout (-+ Figure A-2’. C106 MAIN-B Control Board [...]

  • Page 96

    Appendix STYLUS 800 Service Manual ~.. *,, n— —u.. , PO. CO”7, ””C0 P*OICC1 10” ACAI”8? R18X CAUT 10N . ...,.rr...oru.u. – . 0~ Vtn=. REPLACE ONLY .11. 8.. C1YPC l.--J ASSY . C 106 d’+=- ‘ 2013030 0 0 PSB-B~ t 1 T CMK-P2X ~ A ‘~ ( .- -- —z- ~vl Jw Il l u-l 01--1 l-Jm- T ~ MODEL E L-LA-L-25i’ 1 L2!!r_t C N R2 D.I.I .I. I. [...]

  • Page 97

    . . STYLUS 800 Service Manual Appendix @ LED8 (ORG) @ LEDO (RED ) Swln @ LED1 (RED) J8 A @ LED2 (GRN) @=LE#3@( GRN ) SW2 • 000 Whlw J 3 Xt o 0 ,CN 1 18 u Figure A-4. CI06 PNL Control Panel SW3 SW4 ❑ Rev.A A-II[...]